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Snow, Sleet, Freezing Rain Target Texas, Louisiana

Alan Raymond and Jon Erdman
Published: January 23, 2014

Winter storm warnings and winter weather advisories have been issued for over 10 million from central Texas to western and central Louisiana in anticipation of a quick-hitting disturbance Thursday and Friday.

Background

Current Winter Weather Alerts

Current Winter Weather Alerts

Current Winter Weather Alerts

Current Winter Weather Alerts
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Current Temperatures

Current Temperatures

Current Temperatures

Current Temperatures
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Thursday Night's Forecast

Thursday Night's Forecast

Thursday Night's Forecast

Thursday Night's Forecast
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Friday's Forecast

Friday's Forecast

Friday's Forecast

Friday's Forecast

As a shot of cold Arctic air dives deep into the heart of Texas Thursday, a disturbance in the upper atmosphere will drop south through the Rockies at the same time. This combination will wring out some precipitation across parts of central, south, and southeast Texas and parts of southern Louisiana.

Precipitation may start as light rain Thursday along the I-10 corridor from southwest Louisiana to central Texas.

As Arctic air arrives in central and parts of south Texas, precipitation will change to a mix of snow, sleet and freezing rain from west to east across this I-10 corridor into at least southwest Louisiana, including areas from Austin and San Antonio to Houston and Lake Charles from late Thursday afternoon into early Friday.

As the temperatures fall, at least some ice is expected to build up on bridges, overpasses, and elevated freeways (for example, the double-deck section of I-35 in Austin) as moisture from the earlier rainfall freezes up on any untreated pavement. This will lead to a dangerous commute Friday morning in these areas.

Sleet and ice accumulations of one-tenth to one-quarter of an inch are possible in some areas, with peak icing occurring in trees, powerlines, and on vehicle tops. Widespread power outages are not anticipated, though some sagging tree limbs are possible, in a few spots. 

(MORE: Ice Storm Impacts)

As far as snowfall accumulations, parts of central and southeast Texas may pick up a dusting of snow, under one inch in all locations. That said, this snow may accumulate on top of, and therefore mask, sleet and ice accumulations, adding to the danger of travel in this area.

(MORE: 10 Shocking Snow Cities)

The light wintry mix is expected to shut off late Friday afternoon or Friday evening for most areas.

This weekend, much warmer air will return to the region. That should preclude any long-lasting impacts from this quick shot of wintry weather.

MORE: Winter Storm Janus

A snowman made with cookies and a red plastic cup sits in front of the Lincoln Memorial in Washington, Wednesday, Jan. 22, 2014. (AP Photo/Charles Dharapak)


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